Rebels Give Foes Ultimatum as Services Return in Tripoli

North Atlantic Treaty Organization officials said their efforts in Libya were now focused on preventing a bloody battle for control of Col. Moammar Gadhafi's hometown of Sirte, as rebels gave loyalists until Saturday to surrender.

With rebel officials taking steps to establish their authority in Tripoli, the town of Sirte, 245 miles (395 kilometers) east of the capital, was shaping up as one of the final stands by Gadhafi loyalists....